update documentation link again

Author: eulertour

setup.cfg

@@ -8,10 +8,10 @@ description-content-type = text/markdown; charset=UTF-8
 home-page = https://github.com/3b1b/manim
 project_urls =
     Bug Tracker = https://github.com/3b1b/manim/issues
-    Documentation = https://github.com/3b1b/manim
+    Documentation = https://eulertour.com/learn/manim
     Source Code = https://github.com/3b1b/manim
 license = MIT
-url = https://eulertour.com/learn/manim
+
 
 [files]
 packages = manimlib